Additionally, just to satisfy myself that I wasn't going mad I changed the port from 5060 to 5070 and now things are working, so something is definitely playing up on port 5060.
James > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:asterisk-users- > [EMAIL PROTECTED] On Behalf Of James Harper > Sent: Monday, 12 June 2006 00:58 > To: Asterisk Users Mailing List - Non-Commercial Discussion > Subject: [Asterisk-Users] Cisco router and "488 Not acceptable here" > messages > > Are there any known problems with Cisco routers (Cisco 837) and SIP > sessions? I have been trying to track down a problem for about 3 hours > now and I think the Cisco router is the culprit!!! > > I keep getting "488 Not acceptable here" messages, which are apparently > normally the message you get when a common codec can't be found. I'm > also getting "chan_sip.c:3434 process_sdp: Insufficient information for > SDP (m = '', c = '')" messages, which is strange because the m and c > attributes are definitely there. > > When I looked closer, they are received on the first INVITE, then > asterisk says 'proxy auth required', but the INVITE packet with the > proxy auth doesn't have the attributes. A tcpdump on the asterisk server > confirms this. > > But, when I do a ethereal dump on my PC where I'm running SJphone, the > attributes are there in the packet. > > So something is futzing with my packets, and screwing them up. There is > a Cisco router on my end of the link, so I'm suspecting that! > > Any suggestions? > > Thanks > > James > _______________________________________________ > --Bandwidth and Colocation provided by Easynews.com -- > > Asterisk-Users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users _______________________________________________ --Bandwidth and Colocation provided by Easynews.com -- Asterisk-Users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users